Answer in brief
CVE-2023-52752 records a High severity (CVSS 7.8) vulnerability in smb: client: fix use-after-free bug in cifs_debug_data_proc_show(). The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic), linux/linux_kernel (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 7.8. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Linux/Linux (generic), Linux/Linux (generic), linux/linux_kernel (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=7f48558e6489d032b1584b0cc9ac4bb11072c034 <2abdf136784b7edaec7ffe0f4b461b63f9c4c4de || >=7f48558e6489d032b1584b0cc9ac4bb11072c034 <336a066990bb3962c46daf574ace596bda9303ce || >=7f48558e6489d032b1584b0cc9ac4bb11072c034 <558817597d5fbd7af31f891b67b0fd20f0d047b7 || >=7f48558e6489d032b1584b0cc9ac4bb11072c034 <89929ea46f9cc11ba66d2c64713aa5d5dc723b09 || >=7f48558e6489d032b1584b0cc9ac4bb11072c034 <0ab6f842452ce2cae04209d4671ac6289d0aef8a || >=7f48558e6489d032b1584b0cc9ac4bb11072c034 <d328c09ee9f15ee5a26431f5aad7c9239fa85e62 || a67172a013953664b1dad03c648200c70b90506c || >=3.12.48 <3.13 | 2abdf136784b7edaec7ffe0f4b461b63f9c4c4de, 336a066990bb3962c46daf574ace596bda9303ce, 558817597d5fbd7af31f891b67b0fd20f0d047b7, 89929ea46f9cc11ba66d2c64713aa5d5dc723b09, 0ab6f842452ce2cae04209d4671ac6289d0aef8a, d328c09ee9f15ee5a26431f5aad7c9239fa85e62, 3.13 |
| Linux/Linuxgeneric | 3.13 | Not reported |
| linux/linux_kernelgeneric | 1da177e4c3f4 | Not reported |
Published upstream
May 21, 2024
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 5, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 5, 2026
In the Linux kernel, the following vulnerability has been resolved: smb: client: fix use-after-free bug in cifs_debug_data_proc_show() Skip SMB sessions that are being teared down (e.g. @ses->ses_status == SES_EXITING) in cifs_debug_data_proc_show() to avoid use-after-free in @ses. This fixes the following GPF when reading from /proc/fs/cifs/DebugData while mounting and umounting [ 816.251274] general protection fault, probably for non-canonical address 0x6b6b6b6b6b6b6d81: 0000 [#1] PREEMPT SMP NOPTI ... [ 816.260138] Call Trace: [ 816.260329] <TASK> [ 816.260499] ? die_addr+0x36/0x90 [ 816.260762] ? exc_general_protection+0x1b3/0x410 [ 816.261126] ? asm_exc_general_protection+0x26/0x30 [ 816.261502] ? cifs_debug_tcon+0xbd/0x240 [cifs] [ 816.261878] ? cifs_debug_tcon+0xab/0x240 [cifs] [ 816.262249] cifs_debug_data_proc_show+0x516/0xdb0 [cifs] [ 816.262689] ? seq_read_iter+0x379/0x470 [ 816.262995] seq_read_iter+0x118/0x470 [ 816.263291] proc_reg_read_iter+0x53/0x90 [ 816.263596] ? srso_alias_return_thunk+0x5/0x7f [ 816.263945] vfs_read+0x201/0x350 [ 816.264211] ksys_read+0x75/0x100 [ 816.264472] do_syscall_64+0x3f/0x90 [ 816.264750] entry_SYSCALL_64_after_hwframe+0x6e/0xd8 [ 816.265135] RIP: 0033:0x7fd5e669d381
Quoted source text, attributed separately from HOL analysis.